Lower Primary Central Incisor: Shape, Surfaces, And Structure

Lower Primary Central Incisor: Shape, Surfaces, And Structure

Describe about Primary Mandibular Central Incisor.
Answer:

Primary Mandibular Central Incisor Labial aspect:

• Has a flat face with no development grooves.
• Mesial and distal sides are tapered evenly.
• Has long and tapered roots.
• The root is almost twice the length of the crown.

Primary Mandibular Central Incisor Lingual aspect:

• The marginal ridges and cingulum are located.
• The middle third and incisal third have a flat surface or slightly concave forming. Lingual fossa.
• Crown and root converge lingually.

Primary Mandibular Central Incisor Mesial aspect:

• The incisal ridge is centered over the center of the root.
• The convexity of the cervical contours labially and lingually at the cervical third.
• The mesial surface of the root is nearly flat and evenly tapered.

Primary Mandibular Central Incisor Distal aspect:

• It is the reverse of the mesial aspect.
• The cervical line of the crown is less curved towards the incisal ridge.
• Developmental depression present over the distal side of the root.

Primary Mandibular Central Incisor Incisal aspect:

• The incisal ridge is straight.
• It bisects the crown labiolingually. Taper is seen towards the cingulum
• The labial surface presents a flat surface that is slightly convex.
• The lingual surface presents a flat surface that is slightly concave.